A theory of avalanche breakdown during anodic oxidation |
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| Affiliation: | 1. Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China;2. Center for Biological Imaging, Core Facility for Protein Research Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China;3. Northwest Institute for Non-ferrous Metal Research, Xi’an 710016, China;1. Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic;2. Laboratory of Nanostructures and Nanomaterials, Institute of Physics of the CAS, v.v.i., Na Slovance 2, 182 21 Prague 8, Czech Republic;3. Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic;4. Institute of Physics of the CAS, v.v.i., Cukrovarnicka 10, 162 00 Prague 6, Czech Republic;1. Department of Chemical and Biological Engineering, Iowa State University, Ames, IA, 50011, United States;2. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China;3. Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, United States;1. Institut Jean Lamour, CNRS-Université de Lorraine, UMR CNRS 7198, Parc de Saurupt – CS 50840, F-54011 Nancy cedex, France;2. Laboratoire d''Excellence Design of Alloy Metals for low-mAss Structures (LabEx DAMAS), Université de Lorraine, Ile du Saulcy, F-57045 Metz cedex, France;1. Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;2. Electrochemical Materials Science Laboratory, DICAM, Università di Palermo, Viale delle Scienze, Ed.6, 90128, Palermo, Italy |
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| Abstract: | The breakdown characteristics during anodization of valve metals are interpreted in terms of a recent model. The model quantitatively takes into account, in addition to the oxidation ionic current, the current transported by the electrolyte incorporated into the oxide and the avalanche electronic current. The primary electronic current of the avalanche is attributed to the electrons released by the electrolyte species in the oxide. |
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